Eyelet



f 1,615,048l Jan. 18, 1927' E. SIBLEY EYELET Filed Dec. 19, 1925 CFI Patented Jan. 1S, i927.

UNITED STATES EDWARD L. SIBLEY, OF

BENNINGTON, VERMONT.

EYELET.

Application filed December rlhis invention relate to eyelets or tubular rivets, especially designed for fastening papers or paper documents, of the well known Challenge eyelet type, which are mainifactured under the patent to E. L. Sibley, No. 353,225, dated February 22, 1837, and ordinarily manufactured from a radiate blank such as shown in that patent, or a radiate blank such as shown in the patent of E. L. Sibley 2d, No. 1,469,757, dated October 2, 1923, these eyelets or tubular rivets being applied or set by forcing them by means of a press through the material to be Vfastened without previously forming holes for their passage.

Sometimes these fasteners are made with four fingers or sections, and sometimes with five, and these fingers have had lateral projections on both sides of the fingers to form a fiange. j

The present invention is shown and will be herein explained as embodied in a fourfingered fastener with end projections on one side only in accordance with the invention forming the subject of my case filed July 14, 1925, Serial No. 43,57 3, but the invention is in part applicable to fasteners having any number of fingers.

The invention consists of an cyelet or tubular rivet or fastener formed of a radiate blank, the fingers of which are scored longitudinally so that when the fastener is applied or set these fingers will divide along the lines of the scoring and produce twice as many heading or flange-forming elements as there are lingers, to thereby enhance the security of the fastening and also improve its appearance.

Ordinarily eyelets or tubular rivets have their preformed bottom flanges made flat, but these fasteners do not readily fit in automatic setting machines or presses wherein the feeding and setting are done at one stroke of the press or machine, for the reason that as the fasteners are arranged to slide through the trough or track of the machine with the barrels extending up through the open top of said trough or track and their flanges at right angles to the sides of such trough or track, there is a tendency of the flange of one eyelet to overlap the flange of the one next in contact, thereby causing one or both to jam in the trough or track. In order to overcome this difficulty, I provide the fastener of this invention with an upwardly curved bottom 19, 1925. Serial No. 76,525.

flange of such height that the uppermost part of the flange itself comes in contactk with the retaining part of the trough or track and does not permit the fiange on the next eyelet to wedge in between such edge and the retaining part. Y

In the accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a schematic plan view illustrating a ribbon or piece of stock showing the scorings, the scored blanks, and the openings in the stock after the blanks are cut out. Fig. 2 is a plan view of one of the blanks. Fig. 3 is an elevation of one of the fasteners. Fig. l is a longitudinal section of one of the fasteners. Fig. 5 is a cross section, Fig. 6 isa top plan view and Fig. 7 is a bottom plan view of one of the fasteners set. Fig. 8 is a longitudinal section, and Fig. 9 a top plan view illustrating how the solid center of the fastener may be punched out when set, in order that tne fastener may be used for ribb'oning papers together in accordance with required practice under some laws or customs.

The eyelets or tubular rivets of this invention are formed from a radiate blank, such as shown in Fig. 2, in which there is a solid central portion l and four, more yor less, fingers 2 radiating from this solid central portion, and each of these ngers terminates in the curved lateral projections 3 from one side only, which, when the blank is pressed to shape, as in Fig. 3, come together so as to form the bottom flange, as shown in/Fig. 7; but, as already stated, the flange-forming projections may extend from bot-h sides of the fingers as shown in the patents above mentioned.

In order to facilitate the heading'over of the fastener in setting and to enhance the security of the flange formed by said head ing over and to improve the appearance of the set fastener, I provide the fingers with scorings or slits 4f extended longitudinally thereof between the solid center and the ends of the lingers, so that when the fastener is set the headed-over portion will be divided into twice as many parts as there are fingers, as shown in Figs. 6 and 9.

Where law` or custom requires documents to be ribboned together, the same press that is used to set the fasteners may be used to punch out the central solid portion, as indicated at 5 in Figs. 8 and 9, so that the rib- Cil open-ended eyelet.

ln the manufacture ol the eyelets or tubular rivets of this invention, I may take a.

ribbon or strip 6, of suitable metal and first forni therein the scorings or slits, and then, in the saine or another press, punch out the blanks, as shown at 8, leaving the cnts 9. In the operation of foi-nung4 the fasteners and in order to involve the least possible waste of stock the punches and dies may be arranged so that the fingers of adjacent fasteners will overlap.

After the blanks, as shown in Fig. 2, are cut` they are drawn to shape to form the bodies of the fingers into substantially parallel relation, constituting' the barrel of the device, as indicated in Figsj and 4:, and the bottom flange l0 will be turned up toward thesolid central portion, instead of extending'flatwise or at right angles to the barrel. As already stated, the barrels of the eyelets extend upwardly and outwardly through the slot or open top of the feed trough or track, while the upwardly curved bottom flanges extend crosswise of the trough or track, or at rinjht angles tothe sides thereof, and thus the flanges of the eyelets are preventedfrom overlapping and hence jamming in the trough or track.

Not only has the npturned flange the functions stated but in addition it has the following` advantages, namely ln the act of settingthe fastener this uptnrned flange iattens out under pressure and extends parallel with the material fastened, as shown in'Figs. 5 and 8, instead fof 'cutting into the material or forming a sharp shoulder against which the V[laune 'formed on the opposite end of the eyelet might operaie as a shear during` the'heading-over or setting operation, and this a particularly important feature in using` the eyelets on a small thickness of material.

lt is possible toV carry out the manufacture of the devices by slitting the ribbon of stock first and then cutting out the eyelet blanks, or the slitting and the cutting out may be done at one operation.

V/Tariations in the details of constrluttion are permissible within the principle of the invention and the claims hereinafter made.

lVhat I clailn is1- l. A device of the character described. having a solid central portion, a barrel made up of a series of`longitndinally scored fingers and av pre-formed bottom iiange, the scored fingers, when the device is set, dividing: along thelines of the scoring and doubling; the number of portions forming the upset end.

2. A device of the character described. having` a solid central port-ion adapted for use in driving the device through an article to which it is t0 be applied, a barrel composed of a series of fingers scored or slitted longitudinally, and a bottom flange turned upwardly in the direction of the plane of the solid central portion.

lIn testimony whereof I have hereunto set my hand this 17th day ofDecember, A. D. 1925.

EDWARD L.v SIBLEY.

Certificate of Correction.

Patent No. 1,615,048, granted January 18, 1927, to

EDWARD L. SIBLEY.

It is hereby certified that error appears in the printed specification of the aboven'lentioned patent requiring correction as follows: Page 1, line 1, for the Word relate read relates; page 2, line 6, after the Word slits and before the comme insert the numeral 7; and that the said. Letters Patent should be read With this gn'rection therein that the same may conform to the record of the oase in the Patent ffice. Signed and sealed this 22d dayof February, A. D. 1927.

[SEAL] M. J. MOORE, l I Acting @ammissioner of Patents. 

